The Ballot Brief › Illinois › Sean Casten
Sean Casten
Democratic · Illinois · 2026 · IncumbentBiography
Casten is a scientist and clean-energy entrepreneur who holds dual master's degrees in engineering management and biochemical engineering from Dartmouth College, per the campaign site. He co-founded Recycled Energy Development and represents Illinois' 6th District, per the campaign site.
Top Priorities
- Energy and Climate Policy
- Jobs and Growing Our Economy
- Gun Safety
Per the campaign site.
Key voting record
- Voted no on the One Big Beautiful Bill Act, the 2025 tax-and-spending package, which passed the House 218-214 in July 2025. Opposed
- Voted no on the Laken Riley Act, expanding federal detention of certain immigrants charged with theft or violent crimes, which passed the House 263-156 in January 2025. Opposed
- Voted no on the National Defense Authorization Act for fiscal 2026, which passed the House 231-196 in September 2025. Opposed
- Voted no on the November 2025 funding agreement that ended the government shutdown, which passed the House 222-209 in November 2025. Opposed
- Voted no on the September 2025 stopgap funding bill, which passed the House 217-212 in September 2025. Opposed
- Voted no on the March 2025 full-year stopgap funding bill, which passed the House 217-213 in March 2025. Opposed
On the ballot
U.S. House, IL-6 · Illinois · 2026
How we source this
Profile facts follow official election office filings and the sources cited in each biography. Official sources are the final word on who appears on your ballot.